IBM Fibre Channel disk drives are dual-ported, providing individual access from two
Fibre Channel loops to the same disk drive. When configuring the ESMs, configure
the second ESM the same way you configured the first ESM. Refer to the
Fibre
Channel Cabling Instruction
s that come with your storage server for more
information about dual-loop support and implementation.
Each ESM has an SFP module input port and an SFP module output port. As you
cable FAStT EXP700s together, connecting input ports to output ports can improve
diagnostic capability. Refer to your storage server documentation and the
Fibre
Channel Cabling Instruction
s for cabling connections between input and output
ports.
Cabling the power supply
Complete the following steps to connect the power-supply cable:
1. Wrap the strain-relief clamp around the power cable approximately 20 cm (8 in.)
from the power supply connection end.
2. Attach the power-supply nut and tighten it securely.
3. Connect the power cable to the power supply.
4. Plug the supply power cable into a properly grounded electrical outlet.
5. Continue with “Turning the expansion unit on and off” for the initial startup of the
expansion unit.
Turning the expansion unit on and off
When you turn on and turn off the expansion unit, be sure to use the startup
sequence in this section.
Turning on the expansion unit
Use the following startup sequence to turn on the power for the initial startup of the
expansion unit:
1. Verify that:
Loop B Fibre Channel
interface cable
Input
Output
Output
New expansion unit
First expansion unit
Storage server
with two RAID controllers
Left ESM board
Right ESM board
Figure 35. FAStT EXP700 redundant loop configuration
36
IBM TotalStorage FAStT EXP700 Storage Expansion Unit: Installation and User’s Guide
Summary of Contents for TotalStorage FAStT EXP700
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